From e96fb230cc97760e448327c0de612cfba94ca7bf Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Tue, 7 Mar 2006 21:55:36 -0800
Subject: [PATCH] jffs2: avoid divide-by-zero

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 fs/jffs2/scan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fs')

diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 3e51dd1da8a..cf55b221fc2 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -233,7 +233,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 		c->nextblock->dirty_size = 0;
 	}
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
+	if (!jffs2_can_mark_obsolete(c) && c->wbuf_pagesize && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
 		/* If we're going to start writing into a block which already
 		   contains data, and the end of the data isn't page-aligned,
 		   skip a little and align it. */
-- 
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